On 1/2/19 12:09 PM, Miroslav Geisselreiter wrote: > some parameters from smb.conf: > [global] > workgroup = NT4DOMAIN > netbios name = nt4member > security = domain > passdb backend = ldapsam:"ldap://ldap1server.intranet.xx > ldap://ldap2server.intranet.xx" I'm not sure it makes sense to use "security = domain" with an ldap passdb backend. If you're using a real NT4 domain, then you shouldn't need a passdb backend at all. If you're not in an NT4 domain, then you should set "security = USER". The man page for smb.conf notes "This mode will only work correctly if net(8) has been used to add this machine into a Windows NT Domain." Did you add this host to a Windows NT domain, using "net join ..."?